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-rw-r--r--tests/extra-terminating-null.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/extra-terminating-null.c b/tests/extra-terminating-null.c
index bb71b1ab34c7..8a2043f3dd76 100644
--- a/tests/extra-terminating-null.c
+++ b/tests/extra-terminating-null.c
@@ -28,7 +28,7 @@
#include "tests.h"
#include "testdata.h"
-void check_extranull(void *fdt, const char *prop, const char *str, int numnulls)
+static void check_extranull(void *fdt, const char *prop, const char *str, int numnulls)
{
int len = strlen(str);
char checkbuf[len+numnulls];